How much distance must be between the sensors and the nozzle?
The minimum sensor to valve distance (SVD) is based on a simple factor that is multiplied by the maximum air velocity in feet per minute. In most cases this factor is based on 300 milliseconds reaction time however the installer should consult the installation manual or supplied drawings to verify this critical distance prior to mounting the components. Based on this factor, typical air speeds of 4,000-5,000 feet per minute would require 20-25 feet or minimum distance respectively. The faster the air velocity, the more distance is needed.
Related Questions
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